What does "otherdom" mean?

The state, condition, or existence of others; the tendency toward preferring, serving, or doing for others; selflessness.

Otherdom

noun

noun ·Rare ·Advanced level

Noun

1
The state, condition, or existence of others; the tendency toward preferring, serving, or doing for others; selflessness. rare
"It is clearly shown that right and wrong are conditions of otherdom. That ethics, in short, is a meaningless term to a single, isolated individual."

"It is clearly shown that right and wrong are conditions of otherdom. That ethics, in short, is a meaningless term to a single, isolated individual."

From other + -dom.